Method for obtaining pure water from salt water.



F. T. EVAN S.

METHOD FOR OBTAINING PURE WATER FROM SALT WATER. APPLICATION FILED JULYI. 1913.

1 2%,, II 11 8o Patented May 8, 191?.

I I 3 22:, I g G: 1.. I EZ Z 1 531 T Jfli; .4 5; w Ffg l I Hi I I I I41'7 I 1- wwzwtoz JMMZTW but no salt, and finally condensing the lastnamed vapor.

3. The method described for obtaining pure water from salt water in astate of agitation, which consists in first subjecting such salt Waterin a closed vessel to the action of sufiioient heat to set free a vaporcontaining water and a small percentage of salt, then subjecting saidvapor so derived in a closed vessel to a very much higher temperature toset free a second vapor containing water but no salt, and finallycondensing the last named watery vapor.

4. The method described for vobtaining pure water from salt water in a"state of agitation, which consists in evapdrating salt water by heat toobtain a watery gvapor containing a small percentage of salt, thensuperheating the vapor so derived under conditions where no water ispresent as abo'dy, and finally condensing the superheated vapor toobtain pure Water.

5. The method described for obtaining pure water from salt water in astate of agitation, which consists in introducing a body of salt waterinto a vessel and therein subjecting suchsalt water to the action ofheat transmitted through the water from a coil through which steam ispassed, conveying the vapor thus derived from such vessel to a secondvessel, and therein subjecting such vapor to the action of heattransmitted through the vapor from a coil through which steamof highertemperature is passed, whereby such vapor is expanded to form a secondvapor and the salt separated therefr'om5-condensing the last named vaporto form fresh water, and removing the deposited salt from time to time.

In testimony whereof, I afiix my signature, in the presence of twoWitnesses.

FRANK TAYLOR EVANS. Witnesses:

ERNEST L. GUNTHER, Enw. J. MoCoRMAoK.

